PTC Electric Heater Principle and Function
PTC ceramic heater is composed of PTC ceramic heating elements and corrugated aluminum strips bonded with high-temperature adhesive. This type of PTC heater has the advantages of low thermal resistance and high heat exchange efficiency, and is an automatic constant temperature, energy-saving electric heater. One of its prominent features lies in safety performance. Under any application, it will not produce the surface "reddening" phenomenon like electric heating tube heaters, which can cause burns, fires and other safety hazards. PTC thermistor heating element is a high-tech product of modern and even future times. It is widely used in light industry, housing, transportation, aerospace, agriculture, medical, environmental protection, mining, civil equipment, etc. Compared with nickel, chromium wire or far-infrared heating elements, it has advantages.
Characteristics of PTC Ceramic Heater
1. PTC ceramic heater saves cost and has long life.
No special temperature controller and temperature sensors such as thermocouples are needed for temperature feedback to control the heater. Its temperature adjustment relies on its own material characteristics, thus giving the product a much longer service life than other heaters.
2. PTC ceramic heater is safe and environmentally friendly.
The designed heating temperature of the heater body is below 200 degrees Celsius in multiple levels. Under any circumstances, the body does not redden and has a protective isolation layer. No asbestos or other insulation materials are needed for cooling treatment in any application. It can be used with confidence without the risk of burns or fire.
3. PTC ceramic heater saves electricity.
Compared with electric heating tubes and resistance wire heating products, this product relies on the characteristics of the material itself to adjust its thermal power output according to changes in ambient temperature. Therefore, it can optimize and minimize the power consumption of the heater, while the high heat efficiency material also greatly improves the utilization efficiency of electric energy.
· Rapid heating, self-controlled temperature even when fan fails, long service life
· Wide voltage range, can be designed from 12V to 380V as needed
· Convenient design, can be designed from low power to high power arbitrarily, and the appearance can also be designed as required
· Non-flammable, safe and reliable, PTC does not redden or produce open flame when heating
In medium and low power heating applications, PTC heaters have advantages that traditional heating elements cannot match, such as constant temperature heating, no open flame, high heat conversion rate, minimal influence from power supply voltage, and long natural life. Their application in electric heating appliances is increasingly favored by R&D engineers.
Precautions for Using PTC Ceramic Heater
(1) PTC ceramic heater has the characteristic of automatic constant temperature, no temperature control system is needed, just power on the PTC ceramic heater directly.
(2) When PTC ceramic heater is used to heat liquid (such as water), the PTC ceramic heater will not be damaged if the liquid dries up.
(3) If PTC ceramic heater is used to heat cold air, the PTC ceramic heater will not be damaged when no air is blown.
(4) Long service life: under normal environment, the service life can reach more than 10 years.
(5) Reliable operation: using the internal characteristics of PTC ceramic heater to control temperature, it will never overheat.
(6) Very wide operating voltage: when the operating voltage changes by 2 times, the surface temperature change is very small.
(7) When multiple PTC ceramic heaters are used together, they should be connected in parallel, not in series.
Application Scope of PTC Ceramic Heater
(1) General practical PTC heaters. These appliances mainly include: electric mosquito repellent, hand warmer, dryer, electric heating plate, electric iron, electric soldering iron, electric heat bonding machine, curling iron, etc. Their characteristics are low power but high thermal efficiency and practicality.
(2) Automatic constant temperature PTC heaters. These appliances mainly include: small crystal device constant temperature bath, constant temperature incubator, electronic thermos, incubator, thermal cup, thermal plate, thermal cabinet, thermal table, etc. Their characteristics are automatic heat preservation, simple structure, good constant temperature performance, high thermal efficiency, and wide ambient temperature range.
(3) Hot air PTC heaters. These appliances mainly include: air conditioner, fan heater, small warm air heater, hair dryer, room heater, dryer, wardrobe dryer, clothes dryer, industrial drying equipment, etc. Their characteristics are high output hot air power, rapid heating, safety, and automatic adjustment of air temperature and power consumption.
